SUMMARY A closed chest technique for production of myocardial infarction in dogs is described. After isolation of the left carotid artery, selective coronary cineangiography is performed. A guide wire is then inserted into the catheter and advanced into the circumflex or anterior descending branch of the left coronary artery. The catheter is temporarily removed. A specially designed, siliconize...

Background: Analog radiography has been replaced with digital radiography for canine diagnostic imaging in many veterinary clinics. There is no data comparing these modalities in a veterinary clinical setting to detect bronchial pattern signs in dogs. Objectives: In this study, computerized digital radiography (CR) and analog radiography were compared for diagnosis of bronchial pattern in dogs....

The mixed-signal circuits with both analog and digital blocks on a single chip have wide applications in communication and RF circuits. Integrating these two blocks can cause serious problems especially in applications requiring fast digital circuits and high performance analog blocks. Fast switching in digital blocks generates a noise which can be introduced to analog circuits by the common su...